Do you want to develop a great serve? Look at one of the best servers in the history of tennis.
He had what was considered a low toss though he always hit it at full extension. He just didn't wait around for a high toss to drop down but instead took it at the Apex or close to it.
"Roscoe Tanner
had a serve that mesmerized receivers due to a lightning-fast delivery. When I see Tanner judged as a one-dimensional player it makes me chuckle. 16 career titles mean something. Tanner's service was so good that it made the rest of his game seem less so by comparison. You don't successfully compete against such a strong field of opponents in your time unless your game stacks up as one of the best in the world at the time. He took Borg to five sets at Wimbledon and that would be enough for me personally. Taking the Australian in the final against Vilas, a clay master, in his peak year may not be exactly the same as taking the French from Rafa but there aren't many people that ever held a racket that could do either. He was fun to watch too."